Tom Hardy is awesome, and personally I love Venom's voice (looked it up, even though it sounds like it has a hint of Keith David, apparently it is Hardy), but I'm still skeptical as to whether or not this is actually going to be any good. It looks like there are some elements of a decent story, but overall it seems to be pretty much exactly what everyone is predicting in terms of plot:
Mad doctor experiments because humans aren't scary enough already, Eddie somehow gets into a super secure building and into super secure areas inside that building that not even employees can easily get into because symbiotes are obviously super dangerous but still Eddie gets infected despite all that security, he spends half the movie trying to deal with/control it while also trying to convince his girlfriend/coworker/whatever that he's not crazy and then when she finally sees Venom he has to try to convince her that maybe he can use its powers for good even though it wants to eat people's faces off, meanwhile a couple of the other symbiotes are purposely/accidentally released/escaped and causing mayhem and purposely/accidentally come into conflict with Venom, maybe even via threatening his girlfriend somehow, and since Venom is both of them there is enough of Eddie there to make Venom try to put them down instead of just letting them murderize everyone like his symbiote wants to do as well, and then mad doctor has to get his hands dirty and we have the big fight, which Venom mostly wins (enough left over for a sequel!) because duh, he's Venom.
I mean, I really doubt it is much more complex than all of that, and that's fine, but there is a lot of room for the execution to just be downright awful if they don't make us give a shit about Eddie or his relationships with anyone else (girlfriend, family maybe?) to give us a reason to root for Eddie instead of just wishing he killed everyone in the movie because they are all stupid and don't deserve to live and it would be more fun watching a Freddy Krueger-esque massacre. Honestly, the two trailers make me feel that it is much more likely to be so light on character and motivation that I will be wishing for murderizing. I hope I'm wrong, but until I hear it is spectacular from you guys, I'm not going to bother seeing it in theaters.